The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2015
Filed:
Oct. 27, 2010
Karl Friedrich Doessel, Wuppertal, DE;
Gunter Richter, Wuppertal, DE;
Karl Friedrich Doessel, Wuppertal, DE;
Gunter Richter, Wuppertal, DE;
AXALTA COATING SYSTEMS IP CO., LLC, Wilmington, DE (US);
Abstract
A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A' from a solventborne coating composition A to a substrate, (2) applying a coating layer B′ from a solventborne coating composition B onto the substrate provided with coating layer A′, (3) subjecting the coated substrate obtained in step (2) to a drying step, (4) applying a clear coat layer, and (5) curing the coating layers simultaneously; wherein both coating compositions A and B comprise binders and crosslinkers comprising melamine-formaldehyde resin crosslinker, wherein both coating compositions A and B comprise certain proportions of cellulose ester binder and NAD binder and/or sheet silicate and/or fumed silica and/or urea SCA and/or polyolefine wax, wherein the pigment content of coating composition A comprises <90 wt. % of aluminum flake pigments and is composed in such a way that NIR-opaque coating layer A′ exhibits low NIR absorption, wherein the pigment content of coating composition B consists 50 to 100 wt. % of black pigment with low NIR absorption and 0 to 50 wt. % of further pigment.